Massage gun



FIG. 1 is a rear perspective view of the massage gun showing my new design;

FIG. 2 is a front perspective view thereof;

FIG. 3 is a rear elevational view thereof;

FIG. 4 is a front elevational view thereof;

FIG. 5 is a right side elevational view thereof;

FIG. 6 is a left side elevational view thereof;

FIG. 7 is a top plan view thereof; and,

FIG. 8 is a bottom plan view thereof.

The broken lines shown in the figures are for the purpose of illustrating portions of the massage gun, which form no part of the claimed design. 

CLAIM The ornamental design for a massage gun, as shown and described. 